ORC: Fix bootstrapping of applyconfigurations

codegen depends on interfaces generated by controller-gen.
However, controller-gen will fail during code inspection if the
applyconfiguration package does not already exist because it is imported
by the code being inspected. This is a bootstrapping problem.

We ensure the applyconfiguration package exists by adding a doc.go.

Author: mdbooth

orc/pkg/clients/applyconfiguration/api/v1alpha1/doc.go

@@ -0,0 +1,17 @@
+/*
+Copyright 2024 The ORC Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1alpha1